Mix.py

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#!/usr/bin/env python
 
"""
Simple example to illustrate the problem for task #13911
https://savannah.cern.ch/task/?13911
"""
from __future__ import print_function
# =============================================================================
__author__ = "Vanya BELYAEV Ivan.Belyaev@itep.ru"
__date__ = "2010-04-24"
# =============================================================================
import sys
 
from Gaudi.Configuration import *
from Configurables import HelloWorld, GaudiSequencer, Sequencer
 
from GaudiPython.Bindings import AppMgr, setOwnership
from GaudiPython.Bindings import gbl as cpp
from GaudiPython.GaudiAlgs import GaudiAlgo, SUCCESS
 
# =============================================================================
# @class SimpleAlgo
#  very simple (empty) python algorith
# @author Vanya BELYAEV Ivan.Belyaev@itep.ru
# @date   2010-04-24
 
 
class SimpleAlgo(GaudiAlgo):
    def execute(self):
 
        print('I am SimpleAlgo.execute!  ', self.name())
        sys.stdout.flush()
 
        return SUCCESS
 
 
# =============================================================================
# configure the application :
 
 
def configure():
 
    importOptions('Common.opts')
 
    ApplicationMgr(
        TopAlg=[
            HelloWorld(),
            GaudiSequencer(
                'MySequencer',
                MeasureTime=True,
                Members=[HelloWorld('Hello1'),
                         HelloWorld('Hello2')])
        ],
        # do not use any event input
        EvtSel='NONE')
 
    gaudi = AppMgr()
 
    # create two "identical" algorithms:
 
    myAlg1 = SimpleAlgo('Simple1')
    myAlg2 = SimpleAlgo('Simple2')
 
    # Adding something into TopAlg-sequence is OK:
    gaudi.setAlgorithms([myAlg1] + gaudi.TopAlg)
 
    # Extending of "other"-sequences causes failures:
    seq = gaudi.algorithm('MySequencer')
 
    seq.Members += ['HelloWorld/Hello3']  # it is ok
    seq.Members += [myAlg2.name()]  # it fails
 
    cpp.StatusCode.enableChecking()
 
 
if '__main__' == __name__:
 
    # make printout of the own documentations
    print('*' * 120)
    print(__doc__)
    print(' Author  : %s ' % __author__)
    print(' Date    : %s ' % __date__)
    print('*' * 120)
    sys.stdout.flush()
 
    configure()
 
    gaudi = AppMgr()
 
    gaudi.run(4)
 
    # add 'late' algorithms
 
    myAlg3 = SimpleAlgo('Simple3')
 
    seq = gaudi.algorithm('MySequencer')
    seq.Members += ['HelloWorld/Hello4']
 
    gaudi.run(8)
 
    seq.Members += [myAlg3.name()]
 
    gaudi.run(3)
 
# =============================================================================
# The END
# =============================================================================